According to this
, it is not pentile, nor true RGB:
While we were waiting with bated breath for Samsung to announce an HD Plus screen, meaning a regular RGB matrix, it seems to have quietly gotten rid of the typical PenTile arrangement with the Note II, yet employed something different than standard RGB stripes.
The pixel level zoom-in shows not the RGBG PenTile, but rather the blue stripes seemingly turned purpendicular to the red and green ones, yet overall we get the same amount of pixels as with RGB, not a third less due to the clever "screen door" arrangement of PenTile. We heard recently that Samsung might have improved on the traditional FMM production method for its AMOLED displays, which has allowed for higher pixel densities, so that might be it, in the new Note II.